/*
 * Copyright 1999-2101 Alibaba Group.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.fastjson.serializer;

import java.io.IOException;
import java.util.Collection;

/**
 * 
 * @author wenshao<szujobs@hotmail.com>
 * 
 */
public class CollectionSerializer extends ObjectSerializer {
	public final static CollectionSerializer instance = new CollectionSerializer();

	public void write(JSONSerializer serializer, Object object) throws IOException {
		SerializeWriter out = serializer.getWrier();
		
		Collection<?> collection = (Collection<?>) object;
		out.append('[');
		boolean first = true;
		for (Object item : collection) {
			if (!first) {
				out.append(',');
			}
			first = false;
			
			if (item == null) {
				out.append("null");
				continue;
			}
			
			Class<?> clazz = item.getClass();
			
			if (clazz == Integer.class) {
				out.writeInt(((Integer) item).intValue());
				continue;
			}
			
			if (clazz == Long.class) {
				out.writeLong(((Long) item).longValue());
				continue;
			}
			
			serializer.write(item);
		}
		out.append(']');
	}

}